Home / 14,439.68-19,914.28-9,402

Finding the Fourth Proportional to 14,439.68, 19,914.28 and 9,402

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Solution

The fourth proportional to 14,439.68, 19,914.28 and 9,402 is: 12,966.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,439.68 : 19,914.28 = 9,402 : x
  2. Step 2: Convert to fraction form
    14,439.68/19,914.28 = 9,402/x
  3. Step 3: Cross multiply
    14,439.68x = 19,914.28 × 9,402
  4. Step 4: Simplify right side
    14,439.68x = 187,234,060.56
  5. Step 5: Solve for x
    x = 187,234,060.56/14,439.68
  6. Step 6: Final answer
    x = 12,966.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.